cloud-fan commented on issue #24565: [SPARK-27665][Core] Split fetch shuffle blocks protocol from OpenBlocks URL: https://github.com/apache/spark/pull/24565#issuecomment-494039545 Let's start doing versioning in the new shuffle protocol. The new message `FetchShuffleBlocks` should contain a `version` property (probably a byte?). At the server side, we should check the `version` property first. If the version is higher than expected, throw an exception and explain the reason.
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